Claudius Ptolemy was a Greek mathematician, astronomer and geographer who lived in the Egyptian city of Alexandria while under the rule of the Roman Empire. Much of medieval astronomy and ...

5. Claudius Ptolemy: Ptolemy is the most towering figure in all of astrological history that we know of today. The 2nd-century astrologer or rather a polymath, whatever sounds apt to you.

The dog, named “Ptolemy” after the Greek mathematician and astronomer Claudius Ptolemy, was affectionately nicknamed “Tol.” ...

One was the 1522 edition of the Geography of Claudius Ptolemy, the other a collection of historical narratives whose authors included Marco Polo and Christopher Columbus. It’s impossible to know ...

helped overthrow more than a thousand years of Aristotelian thinking (reinforced by Greek astronomer Claudius Ptolemy) which said that objects only moved if an external force drove that motion.